It was found that Python's smtplib library did not return an exception when StartTLS failed to be established in the SMTP.starttls() function. A man in the middle attacker could strip out the STARTTLS command without generating an exception on the Python SMTP client application, preventing the establishment of the TLS layer.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | python26 | 2016-07-20 18:00 | ALAS-2016-724 |
Amazon Linux 1 | python27 | 2016-07-20 18:00 | ALAS-2016-724 |
Amazon Linux 1 | python34 | 2016-07-20 18:00 | ALAS-2016-724 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv2 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Amazon Linux | CVSSv3 | 4.8 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
NVD | CVSSv2 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
NVD | CVSSv3 | 6.5 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N |